Product selection guide: Contact thermometers | Fluke
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Product selection guide: Contact thermometers

Use our product selection guide to find the thermometer that fits your needs best.
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Fluke 51 II Single Input Digital Thermometer 1
Fluke 53 II Single Input Digital Thermometer with Data Logging
Fluke 51 II Handheld Digital Probe Thermometer53 II Temperature Logging Digital Thermometer

Application

Recommended usesLaboratory, quality assurance, process calibration, food safety, HVACLaboratory, quality assurance, process calibration, food safety, HVAC 

Contact

Probe typeThermocouple K, J, T, EThermocouple K, J, T, E, N, R, S 
Number of inputs11 
Temperature rangeT-type: -250 °C to +400 °C (-418 °F to +752 °F)T-type: -250 °C to +400 °C (-418 °F to +752 °F) 

General

What temperature range do you need to measure?500 °C (+932 °F)900 °C (+1600 °F) 
Do you need more than 1 % 1 °C (2 °F) accuracy?  
Do you need to download data for analysis and reporting?  
Do you need on-board memory for trending and comparison?  

Infrared / non-contact

Non-contact temperature range500 °C (+932 °F) 

Physical

Form factorFlatFlat 
Dimensions, approximate (H x W x D)17.3 x 8.6 x 3.8 cm (6.8 x 3.4 x 1.5 in)17.3 x 8.6 x 3.8 cm (6.8 x 3.4 x 1.5 in) 
Battery3 AA3 AA 
Warranty3 years3 years 

Measurement Type

Temperature areaSurface temperatureInternal, ambient and non-contact surface temperature 

Other features

Do you want to use industry standard thermocouples?   

Special features

Time stampRelativeTime of day 
Min-Max-Avg-DifMin-Max-Avg-DifMin-Max-Avg-Dif 
Hands-free logging  

Data storage and download

Number of on-board memory locations500 
PC download and softwareFlukeView Forms